Former Leinster forward Dominic Ryan has been forced to retire from rugby due to concussion. 

Ryan, 28, made 113 apperances for Leinster before moving to Leicester Tigers last season. 

Today, Leinster confirmed that Ryan, who suffered the concussion while attempting a tackle on George North during a Premiership match last September, had called time on his playing days. 

Speaking in the Irish Times, Ryan detailed his battle to get back on to the playing field over the last 12 months and his eventual decision to retire. 

He said: "It's a weight off my shoulders...with a bit of distance I can see it was a no-brainer to retire.

"I can see now I was literally putting myself in harm's way." 

Ryan won one cap for Ireland in 2014.